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Disodium Phosphate
Chemical Name: Disodium Phosphate
Molecular Formula: Na2HPO4; Na2HPO42H2O; Na2HPO4·12H2O
Molecular Weight: Anhydrous: 141.96; Dihydrate: 177.99; Dodecahydrate:358.14
CAS: Anhydrous:7558-79-4; Dihydrate: 10028-24-7 ; Dodecahydrate:10039-32-4
Character: White powder, easily soluble in water, insoluble in alcohol. Its water solution is slightly alkaline.
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Monosodium Phosphate
Chemical Name: Monosodium Phosphate
Molecular Formula: NaH2PO4; NaH2PO4H2O; NaH2PO4·2H2O
Molecular Weight: Anhydrous: 120.1, Monohydrate: 138.01, Dihydrate: 156.01
CAS: Anhydrous:7558-80-7, Monohydrate: 10049-21-5, Dihydrate: 13472-35-0
Character: White rhombic crystal or white crystal powder, easily soluble in water, almost insoluble in ethanol. Its solution is acidic.
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Sodium Acid Pyrophosphate
Chemical Name: Sodium Acid Pyrophosphate
Molecular Formula: Na2H2P2O7
Molecular Weight: 221.94
CAS: 7758-16-9
Character: It is white crystalline powder. Relative density is 1.862. It’s soluble in water, insoluble in ethanol. Aqueous solution is alkaline. It reacts with Fe2+ and Mg2+ to form chelates.
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Sodium Tripolyphosphate
Chemical Name: Sodium Tripolyphosphate, Sodium Triphosphate
Molecular Formula: Na5P3O10
Molecular Weight: 367.86
CAS: 7758-29-4
Character: This product is white powder, melting point of 622 degrees, soluble in water on metal ions Ca2+, Mg2+ has a very significant chelating capacity, with moisture absorption.
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Sodium Hexametaphosphate
Chemical Name: Sodium Hexametaphosphate
Molecular Formula: (NaPO3)6
Molecular Weight: 611.77
CAS: 10124-56-8
Character: White crystal powder, density is 2.484 (20°C), easily soluble in water, but nearly insoluble in organic solution, it is absorbent to dampness in the air. It easily chelates with metallic ions, such as Ca and Mg.
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Sodium Aluminium Phosphate
Chemical Name: Sodium Aluminium Phosphate
Molecular Formula: acid: Na3Al2H15(PO4)8, Na3Al3H14(PO4)8·4H2O;
alkali：Na8Al2(OH)2(PO4)4
Molecular Weight: acid: 897.82, 993.84，alkali: 651.84
CAS: 7785-88-8
Character: White powder
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Sodium Trimetaphosphate
Chemical Name: Sodium Trimetaphosphate
Molecular Formula: (NaPO3)3
Molecular Weight: 305.89
CAS: 7785-84-4
Character: White powder or granular in appearance. Soluble in water, insoluble in organic solvent
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Tetrasodium Pyrophosphate
Chemical Name: Tetrasodium Pyrophosphate
Molecular Formula: Na4P2O7
Molecular Weight: 265.90
CAS: 7722-88-5
Character: White monoclinic crystal powder, it is soluble in water,insoluble in ethanol. Its water solution is alkalic. It is liable to deliquesce by moisture in the air.
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Trisodium Phosphate
Chemical Name: Trisodium Phosphate
Molecular Formula: Na3PO4，Na3PO4·H2O, Na3PO4·12H2O
Molecular Weight: Anhydrous: 163.94; Monohydrate: 181.96; Dodecahydrate: 380.18
CAS: Anhydrous: 7601-54-9; Dodecahydrate: 10101-89-0
Character: It is colorless or white crystal, powder or crystalline granule. It’s odorless, easily soluble in water but insoluble in organic solvent. The Dodecahydrate lose all crystal water and become Anhydrous when temperature rise to 212 ℃. Solution is alkaline, slightly corrosion on skin.
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Trisodium Pyrophosphate
Chemical Name: Trisodium Pyrophosphate
Molecular Formula: Na3HP2O7 (Anhydrous), Na3HP2O7·H2O(Monohydrate)
Molecular Weight: 243.92(Anhydrous), 261.92(Monohydrate)
CAS: 14691-80-6
Character: White powder or crystal
